CN105927607A - Gear engagement type hydraulic valve pocket locking structure - Google Patents
Gear engagement type hydraulic valve pocket locking structure Download PDFInfo
- Publication number
- CN105927607A CN105927607A CN201610525853.6A CN201610525853A CN105927607A CN 105927607 A CN105927607 A CN 105927607A CN 201610525853 A CN201610525853 A CN 201610525853A CN 105927607 A CN105927607 A CN 105927607A
- Authority
- CN
- China
- Prior art keywords
- clamp ring
- valve body
- valve
- valve pocket
- type hydraulic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gears, Cams (AREA)
Abstract
The invention relates to a gear engagement type hydraulic valve pocket locking structure. The gear engagement type hydraulic valve pocket locking structure comprises a valve body, a locking ring and an end cover. The locking ring and the end cover are installed at the two ends of the valve body. The locking ring is connected with the valve body through a thread. The end cover is fixedly connected with the valve body through a fastening part. The position of the locking ring is locked between the locking ring and the end cover through inner and outer gear engagement, and locking ring looseness is prevented. By means of the structure, the servo valve pocket locking manner can be effectively improved, locking failure caused by different expansion systems of materials of the valve body and a valve pocket and the locking ring looseness phenomenon generated under the vibration condition are prevented, and stability and reliability of products are improved.
Description
Technical field
The present invention relates to a kind of gear-engaged type hydraulic valve, especially a kind of gear-engaged type hydraulic valve valve pocket locking mechanism.
Background technology
The assembling structure of existing electrohydraulic servo valve power-amplifier stage, as shown in Figure 1.Mainly it is made up of valve body, valve pocket, recipient, left clamp ring, right clamp ring.Recipient is press-fitted on valve pocket, left clamp ring 3, right clamp ring 4 external screw thread (see Fig. 2,3) internal thread with valve body 2 coordinates, by left clamp ring 3, right clamp ring 4 being screwed in valve body 2 screw thread and applying being fixed by valve pocket-recipient of certain screw-down torque, and realize being accurately positioned of valve pocket 1 and recipient 8 by adjusting left clamp ring 3, the relative position of right clamp ring 4.
This structure has a disadvantage in that in Special use occasion, and product weight and volume are had bigger restriction, and valve body typically uses aluminum alloy materials, valve pocket, recipient, left and right clamp ring to use stainless steel material.Owing to the material coefficient of expansion of aluminium and steel is different, under the high temperature-vibration integrated environmental condition of high intensity, it is possible that the phenomenon that screw-down torque reduces, clamp ring pine moves back, affect the stability of servo valve zero-bit.
Summary of the invention
The present invention is to provide a kind of gear-engaged type hydraulic valve valve pocket locking mechanism, this structure can be effectively improved the mode of servo valve valve pocket locking, the locking caused because of valve body, valve pocket material expansion system difference is prevented to lose efficacy, and generation clamp ring pine moves back phenomenon under vibrating conditions, improve stability and the reliability of product.
For achieving the above object, the technical scheme is that a kind of gear-engaged type hydraulic valve valve pocket locking mechanism, including valve body, clamp ring and end cap, clamp ring and end cap are installed in described valve body two ends, described clamp ring is threaded connection valve body, and described end cap is fixedly connected with the valve body by securing member；By the position of internal-external gear snap-lock clamp ring between described clamp ring and end cap, prevent clamp ring and loosen.
Described clamp ring one end cylindrical is provided with external gear, and other end cylindrical is provided with external screw thread.Described valve body two ends are provided with internal thread.Being provided with internal gear inside described end cap in endoporus, end face outside is provided with connecting hole.
The invention has the beneficial effects as follows:
The present invention clamp ring structure is designed to one end be external screw thread, the other end be the external gear of certain precision；Valve body uses internal thread, matches with clamp ring one end external screw thread, by applying being fixed by valve pocket-recipient of certain screw-down torque；End cap local uses the internal gear of certain precision, matches with the external gear of clamp ring, and uses screw connecting mode to be fixed on valve body, by the position of internal-external gear snap-lock clamp ring, prevents clamp ring and loosens.
The present invention carries out internal-external gear engagement system by clamp ring and end cap and carries out the further locking control of clamp ring, the clamp ring that can effectively solve under the high temperature-vibration integrated environment of high intensity loosens problem, expand the scope of application of hydraulic valve product, improve zero stability and reliability.Verification experimental verification on certain type servo valve, show high temperature, vibration experimental condition under, use the servo valve of this clamp ring, its drift value is mostly less than being unkitted the servo valve of this Structural lock collar, its zero value partially, all within 2%, meets the requirement of relevant criterion and technical protocol.
Accompanying drawing explanation
Fig. 1 is the assembling structural representation of existing electrohydraulic servo valve power-amplifier stage；
Fig. 2 is existing clamp ring structure sectional view；
Fig. 3 is the left view of Fig. 2；
Fig. 4 is the gear-engaged type hydraulic valve valve pocket locking mechanism schematic diagram of the present invention；
Fig. 5 is the clamp ring structure sectional view of the present invention；
Fig. 6 is the left view of Fig. 5；
Fig. 7 is the end cover structure sectional view of the present invention；
Fig. 8 is the left view of Fig. 7.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in Figure 4, a kind of gear-engaged type hydraulic valve valve pocket locking mechanism, including valve pocket 1, valve body 2, left and right clamp ring 3,4, left and right end cap 5,6, recipient 8.
Valve pocket 1 is arranged in the main aperture of valve body 2, valve body 2 two is machined with internal thread, left clamp ring) and right clamp ring 4 by screwing in valve body 2, adjust both realization being accurately positioned valve pocket 1 of the relative axial position with valve body 2, and apply certain screw-down torque and lock.By left and right end cap 5,6 by the inner gear structure of certain precision and left and right clamp ring 3, on 4, the external gear structure of corresponding precision carries out coordinating installation, make left and right clamp ring 3,4 respectively with left and right end cap 5, it is engaged the position locking left and right clamp ring 3,4 respectively between 6 by internal-external gear, prevents clamp ring and loosen.Finally by screw 7, left and right end cap 5,6 is fixed on valve body 2.
Such as Fig. 5, shown in 6, left and right clamp ring 3,4 one end cylindrical is provided with external gear 9, and other end cylindrical is provided with external screw thread 10.
Such as Fig. 7, shown in 8, left and right end cap 5, being provided with internal gear 11 inside 6 in endoporus, end face outside is provided with connecting hole 12.
Claims (4)
1. a gear-engaged type hydraulic valve valve pocket locking mechanism, including valve body (2), clamp ring and end cap, clamp ring and end cap are installed in described valve body (2) two ends, it is characterised in that: described clamp ring is threaded connection valve body (2), and described end cap is connected by securing member and valve body (2) are fixing；By the position of internal-external gear snap-lock clamp ring between described clamp ring and end cap, prevent clamp ring and loosen.
Gear-engaged type hydraulic valve valve pocket locking mechanism the most according to claim 1, it is characterised in that: described clamp ring one end cylindrical is provided with external gear (9), and other end cylindrical is provided with external screw thread (10).
Gear-engaged type hydraulic valve valve pocket locking mechanism the most according to claim 1, it is characterised in that: described valve body (2) two ends are provided with internal thread.
Gear-engaged type hydraulic valve valve pocket locking mechanism the most according to claim 1, it is characterised in that: being provided with internal gear (11) inside described end cap in endoporus, end face outside is provided with connecting hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610525853.6A CN105927607A (en) | 2016-07-06 | 2016-07-06 | Gear engagement type hydraulic valve pocket locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610525853.6A CN105927607A (en) | 2016-07-06 | 2016-07-06 | Gear engagement type hydraulic valve pocket locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105927607A true CN105927607A (en) | 2016-09-07 |
Family
ID=56827695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610525853.6A Pending CN105927607A (en) | 2016-07-06 | 2016-07-06 | Gear engagement type hydraulic valve pocket locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105927607A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017408A (en) * | 2021-10-27 | 2022-02-08 | 上海衡拓液压控制技术有限公司 | Three-redundancy jet pipe electro-hydraulic servo valve with displacement feedback |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1783211C (en) * | 1990-07-02 | 1992-12-23 | Научно-Исследовательский Институт Вакуумного Электронного Машиностроения | Straight flow valve |
| US5348271A (en) * | 1992-10-29 | 1994-09-20 | Bettis Corporation | Locking device |
| CN104390023A (en) * | 2014-10-31 | 2015-03-04 | 张辛悦 | Seal ring locking-type gate valve |
| CN204647527U (en) * | 2015-05-19 | 2015-09-16 | 河北金桥平衡阀门有限公司 | A kind of locking framework of valve |
| CN205937279U (en) * | 2016-07-06 | 2017-02-08 | 上海衡拓液压控制技术有限公司 | Gear engagement formula hydrovalve valve barrel locking structure |
-
2016
- 2016-07-06 CN CN201610525853.6A patent/CN105927607A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU1783211C (en) * | 1990-07-02 | 1992-12-23 | Научно-Исследовательский Институт Вакуумного Электронного Машиностроения | Straight flow valve |
| US5348271A (en) * | 1992-10-29 | 1994-09-20 | Bettis Corporation | Locking device |
| CN104390023A (en) * | 2014-10-31 | 2015-03-04 | 张辛悦 | Seal ring locking-type gate valve |
| CN204647527U (en) * | 2015-05-19 | 2015-09-16 | 河北金桥平衡阀门有限公司 | A kind of locking framework of valve |
| CN205937279U (en) * | 2016-07-06 | 2017-02-08 | 上海衡拓液压控制技术有限公司 | Gear engagement formula hydrovalve valve barrel locking structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017408A (en) * | 2021-10-27 | 2022-02-08 | 上海衡拓液压控制技术有限公司 | Three-redundancy jet pipe electro-hydraulic servo valve with displacement feedback |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160907 |